Clear buf before parsing.

txtlang-gen/src/main.rs

@@ -37,6 +37,8 @@ fn main() -> Result<()> {
         loop {
             match reader.read_event(&mut buf) {
                 Ok(Event::Start(ref e)) if e.name() == b"localeDisplayNames" => {
+                    buf.clear();
+
                     results.extend(parse::locale_display_names(&mut reader, &mut buf));
                 }
                 Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),